直播电商用户使用影响因素研究

作为数字经济的新兴业态,直播电商已成为助力经济社会发展的新动能。如何更好地捕捉公众需求、认知用户行为、提升发展质量、推动行业升级成为直播电商领域的重点研究内容。本文以技术接受与使用整合理论为基础框架,结合感知风险与路径依赖理论,建立直播电商用户使用影响因素模型,研究绩效期望、努力期望、社会影响、便利条件对用户行为意愿和使用行为的影响作用,以及感知风险、路径依赖与上述因素之间的相关关系,并对加快推进直播电商发展提出对策建议。     

信用风险视角下的公共危机及其应对论略——基于社会伦理与经济伦理的分析

在发达的现代性中,财富的社会生产被认为系统地伴随着风险的社会生产。当我们就信用风险及其在工业化时代的扩张,结合现代化的进程尝试进行深入的原因探析时,可以发现对于总体上呈现多样性和复杂性的公共危机,不论是经济危机、社会危机,还是政治性危机等等,经由社会成员间的信用关系的视角来予以把握和考量,显然会非常有益于加深我们对公共危机的理解。     

新会计准则下金融衍生品的风险管理

本文从金融衍生品的风险出发,主要介绍了金融衍生品风险的定义、分类,包括市场风险、流动性风险、操作风险、法律风险,信用风险,结合新会计准则,阐述了金融衍生品新的特点,如金融衍生品核算办法的改变,金融衍生工具使用难度较大、金融衍生品披露的改变,并在建立及时有效的信息披露制度、加强内部控制和风险管理、完善我国金融衍生品市场建设、提高投资者素质等方面提出了一些关于如何更好地进行金融衍生品风险管理的建议。     

风险社会下我国食品安全规制的困境与完善对策

在风险社会下,食品安全不仅关系着广大人民群众的身体健康和生命安全,还影响着经济发展与社会稳定。而我国目前,由于食品安全规制建设起步较晚,其在基础性法律规范制定、安全标准的科学性与体系化、行政管理体制等方面还存在诸多问题。因此,健全食品安全标准体系,建立高效的食品安全管理体制,引入食品安全风险分析制度,完善食品安全规制的法律体系,势必成为今后我国食品安全规制改革的重中之重。     

论专利制度的基本功能

促进科学技术进步和经济社会发展是专利法的终极目标,也是专利制度的主要功能。但是,在我国,专利制度功能的基本构成却常为人们所忽视。创新经济学认为：创新不断扩散,是技术创新社会经济效益的根本来源。《专利法》第26条规定的发明公开制度作为授予专利权的条件之一,对促进技术创新的扩散具有重要价值,体现了专利制度的终极目标。它教导该领域的普通技术人员实施发明（教导功能）,体现了发明人真正做出了发明创造（占有功能）,促进了技术信息和权利信息的传播（信息传播功能）,从而实现增进人类知识积累的专利法目标。从制度功能来看,实现专利制度基本功能的重要载体是专利文献。     

On the stability of the risk hull method for projection estimators

We consider in this paper the regularization by projection of a linear inverse problem Y=Af+εξ$Y=\mathit{Af}+\epsilon \xi$ where ξ$\xi$ denotes a Gaussian white noise, A   a compact operator and ε>0$\epsilon >0$ a noise level. Compared to the standard unbiased risk estimation (URE) method, the risk hull minimization (RHM) procedure presents a very interesting numerical behavior. However, the regularization in the singular value decomposition setting requires the knowledge of the eigenvalues of A$A$. Here, we deal with noisy eigenvalues: only observations on this sequence are available. We study the efficiency of the RHM method in this situation. More generally, we shed light on some properties usually related to the regularization with a noisy operator.     

Measuring people's trust

Summary. We measure trust and trustworthiness in British society with a newly designed experiment using real monetary rewards and a sample of the British population. The study also asks the typical survey question that aims to measure trust, showing that it does not predict 'trust' as measured in the experiment. Overall, about 40% of people were willing to trust a stranger in our experiment, and their trust was rewarded half of the time. Analysis of variation in the trust behaviour in our survey suggests that trusting is more likely if people are older, their financial situation is either 'comfortable' or 'difficult' compared with 'doing alright' or 'just getting by', they are a homeowner or they are divorced, separated or never married compared with those who are married or cohabiting. Trustworthiness also is more likely among subjects who are divorced or separated relative to those who are married or cohabiting, and less likely among subjects who perceive their financial situation as 'just getting by' or 'difficult'. We also analyse the effect of attitudes towards risks on trust.     

Life satisfaction and family structure among adolescents in Hong Kong

Relationships between family structure and perceived life satisfaction in overall life and five domains of the Brief Multidimensional Students’ Life Satisfaction Scale, family life, friendships, school experience, myself, and where I live were examined among 4,502 Chinese adolescent secondary school students in Hong Kong. Bivariate analyses showed that economic status was not a significant risk factor, but gender, level of study, and migrant status had to be controlled to examine the life satisfaction-family structure relations. Logistic regression analyses found that in overall life, with adolescents living with two parents as standard for comparisons, adolescents living with mother had similar life satisfaction, but those living with father only, and those with no parents, or single parent with other adults had very much higher risk of life dissatisfaction. Specifically, the risks associated with the adverse family structures were most excessive in the domain of ‘family life’.     

AFFECTIVE RESPONSES WITHIN A COMPLEX DECISION-MAKING TASK: THE INFLUENCE OF “PERCEPTUALLY” ILL-STRUCTURED PROBLEMS

The perceptual effects of varying levels of expert advice for potentially improving on strategic decisions were examined in conjunction with goals. The amounts of advice about decision alternatives, as well as assigned goals ranging from “nearly impossible” to “easy,” were manipulated. The task used was complex and functioned perceptually as an “ill-structured” problem. Mixed results indicated that more advice significantly affected satisfaction but advice in general had little influence on effort. On the other hand, as goal difficulty decreased, satisfaction and effort significantly increased. Easy goals were superior to more difficult ones within this perceptually ill-structured decision-making situation.     

Riemann manifold Langevin methods on stochastic volatility estimation

In this article, we perform Bayesian estimation of stochastic volatility models with heavy tail distributions using Metropolis adjusted Langevin (MALA) and Riemman manifold Langevin (MMALA) methods. We provide analytical expressions for the application of these methods, assess the performance of these methodologies in simulated data, and illustrate their use on two financial time series datasets.